Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Effect of UVO Treatment on Optical and Electrical Properties of NiOx Thin Film and Perovskite Solar Cells

UVO 처리에 따른 NiOx 박막 및 페로브스카이트 태양전지 셀 특성 변화

  • Sujin Cho (Department of Materials Science and Engineering, Korea University) ;
  • Jae-Keun Hwang (Department of Materials Science and Engineering, Korea University) ;
  • Dowon Pyun (Department of Materials Science and Engineering, Korea University) ;
  • Seok Hyun Jeong (Department of Materials Science and Engineering, Korea University) ;
  • Solhee Lee (Department of Materials Science and Engineering, Korea University) ;
  • Wonkyu Lee (Department of Materials Science and Engineering, Korea University) ;
  • Ji-Seong Hwang (Department of Materials Science and Engineering, Korea University) ;
  • Youngho Choe (Institute for Energy Technology, Korea University) ;
  • Donghwan Kim (Department of Materials Science and Engineering, Korea University)
  • 조수진 (신소재공학과, 고려대학교) ;
  • 황재근 (신소재공학과, 고려대학교) ;
  • 편도원 (신소재공학과, 고려대학교) ;
  • 정석현 (신소재공학과, 고려대학교) ;
  • 이솔희 (신소재공학과, 고려대학교) ;
  • 이원규 (신소재공학과, 고려대학교) ;
  • 황지성 (신소재공학과, 고려대학교) ;
  • 최영호 (에너지기술공동연구소, 고려대학교) ;
  • 김동환 (신소재공학과, 고려대학교)
  • Received : 2023.11.30
  • Accepted : 2024.01.09
  • Published : 2024.03.31
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Abstract

Perovskite solar cells have exhibited a remarkable increase in efficiency from an initial 3.8% to 26.1%, marking a significant advancement. However, challenges persist in the commercialization of perovskite solar cells due to their low stability with respect to humidity, light exposure, and temperature. Moreover, the instability of the organic charge transport layer underscores the need for exploring inorganic alternatives. In the manufacturing process of the perovskite solar cells' oxide charge transport layer, ultraviolet-ozone (UVO) treatment is commonly applied to enhance the wettability of the perovskite solution. The UVO treatment on metal oxides has proven effective in suppressing surface oxygen vacancies and removing surface organic contaminants. This study focused on the characterization of nickel oxide as the hole transport material in perovskite solar cells, specifically investigating the impact of UVO treatment on film properties. Through this analysis, changes induced by the UVO treatment were observed, and consequent alterations in the device characteristics were identified.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2023R1A2C1007128 & No. 2022M3J7A1066428).

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